Why does a man's crotch itch?

Male friends should not take it lightly if they find their crotch itchy. Going to the hospital for examination in time can help them detect what disease they have at the first time. Most of them are caused by men's diseases, and the most likely one is genital herpes. Once this disease occurs, it is contagious, so people must take isolation treatment to avoid infecting others during the outbreak.

HSV-2 is the main pathogen of genital herpes (90%), which causes primary genital herpes after infection. After the initial genital herpes subsides, the remaining virus transfers along the nerve axis through the peripheral nerves to the sacral ganglia and remains dormant for a long time. When the body's resistance is reduced or certain stimulating factors such as fever, cold, infection, menstruation, gastrointestinal dysfunction, trauma, etc., the latent virus can be activated and the virus will move down to the surface of the skin and mucous membranes to cause damage and lead to recurrence. Humans are the only host of herpes virus. The virus cannot survive outside the human body. Ultraviolet rays, ether and general disinfectants can inactivate it.

1. Initial onset of genital herpes

Initial genital herpes can be divided into primary genital herpes and non-primary initial genital herpes. The former is the first time that symptoms appear after infection with HSV, which is primary genital herpes. Its condition is relatively serious. Some patients have had HSV-1 infection in the past (mainly oral or facial herpes) and then were infected with HSV-2 again, which is the first onset of genital herpes. This is non-primary initial genital herpes, and its condition is relatively mild.

(1) The incubation period is 3 to 14 days.

(2) There are clusters or scattered small blisters around the external genitalia or anus, which rupture to form erosions or ulcers after 2 to 4 days and cause spontaneous pain.

(3) Inguinal lymph nodes are often enlarged and tender.

(4) Patients may experience systemic symptoms such as fever, headache, and fatigue.

(5) The course of disease is 2 to 3 weeks.

2. Recurrent genital herpes

After the primary skin lesions subside, the rash recurs. Recurrent genital herpes is milder than primary systemic symptoms and skin lesions and has a shorter course.

(1) There is a local burning sensation, tingling sensation or abnormal sensation before the rash appears.

(2) Clusters of small blisters appear around the external genitalia or anus, which quickly rupture to form erosions or shallow ulcers. The symptoms are perceived to be mild.

The course of the disease is 7 to 10 days.